Build real full-stack apps from professional designs.
Stop building Todo apps. Level up your engineering craft by solving production-grade challenges with real-world technical requirements.
Featured Challenges
Curated curriculum for full-stack mastery
E-commerce Platform
Build a high-performance storefront with inventory management, secure checkout, and real-time analytics.
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Pro Notes App
A markdown-first productivity tool with offline support and sync.
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Social Analytics
Real-time data visualization engine for multi-channel social growth.
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Designer Dashboard
Implement complex UI patterns and intricate layout logic for a professional design resource manager.
Start BuildingHow it Works
Master the full-stack through a proven iterative cycle of design, implementation, and critique.
Pick a Challenge
Choose from our curated library of Figma designs and technical specs across all skill levels.
Code it Out
Implement the design using your preferred stack. Every challenge includes real assets and data APIs.
Submit Work
Deploy your application and submit the live URL and repository to the community dashboard.
Get Feedback
Receive code reviews and performance optimizations from senior engineers and peers.
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Join 50,000+ developers building their career portfolios with production-quality code.